Against a nation with a neglible Airforce, only partially mobilised, unmodern army (25,000 men), and small navy, yet they still managed to inflict losses inspite of the total surprise achieved by the Germans and their audacious plan. The Germans were not going to get anything free like that against the UK. The KM lost ships at an alarming rate, and these were armed vessels, not barges. At the end of the campaign, the KM had in service one Heavy Cruiser (Hipper), two light cruisers, and 4 destroyers. They lost three cruisers and ten destroyers. Most of their surface fleet was put out of action for months.